class Magic():
    def __init__(self,employee_list):
        self.employee=employee_list
    def __str__(self):
        return ",".join(self.employee)
com=Magic(["jinbobo","jinbobo"])
print(com)
class abs():
    def __init__(self,digit):
        self.digit=digit
    def __abs__(self):
        return abs(self.digit)
my_num=abs(1)
abs(my_num)